Add or update an MCP server entry in .mcp.json.
When to Use
Section titled “When to Use”Use this skill when you want to add or update an MCP server in .mcp.json.
Do not use this skill to set a keycard.toml field (use keycard-upsert-config), or to discover which MCP servers are available in your zone (use keycard-discover-entities).
Arguments
Section titled “Arguments”add "<name>" command="<cmd>" args=[...] env={...}
Examples
Section titled “Examples”- “Add an MCP server called my-server using npx with args -y @my/mcp-server”
- “Add a local MCP tool at /usr/local/bin/my-mcp”